Thomas J Oord proposes an alternative theory of creation:

My theory says God never creates out of absolute nothingness. Each moment of creation history begins with God creating something in relation to what God previously created. God always creates something new from something old and never ex nihilo.

This theory says God has always been creating. God’s work to create in relation to what God previously created has always been going on. To put it another way, God’s creating is everlasting. That’s why I call God the “ever Creator.” God’s creating activity had no absolute beginning and is new every moment of a history without beginning or end.